An 8-Hour AN/SSQ53 Lead Chloride Magnesium Battery.
Final rept. 15 Jul 75-15 May 76,
ESB INC RALEIGH N C WISCO DIV
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A program was undertaken to determine a workable design for an 8-hour life lead chloride-magnesium, seawater activated battery for use in the ANSSQ53 sonobuoy. The major effort consisted of design and fabrication of prototype samples for testing followed by production of 50 samples for delivery to the Naval Air Development Center for evaluation. Results of these tests indicated that the battery design met all specification requirements with the exception of the minimum voltage of 11.0 volts at 180 seconds of discharge for batteries tested in 0C-1.5 salinity seawater. Voltage readings at 180 seconds of 4 samples tested cold ranged from 10.75 volts to 10.96 volts. This unreliable activation performance can be attributed to a high discharge current density 55masq in. in conjunction with variability in lead chloride cathode processing. It is recommended that additional volume be allowed for the battery, if possible, to reduce discharge current density to the range of 40 - 50 masq in. Additional effort is also required to optimize the design and processing parameters of the lead chloride cathode.
- Electrochemical Energy Storage
- Acoustic Detection and Detectors